Keep all the parts that are serviceable and discard those that are broken.

A. It is necessary to add fluid to the hydraulic reservoir.

B. Drain fluid to the hydraulic reservoir as necessary.

C. Add fluid to the hydraulic reservoir as necessary.

A. The bolt will be at the 2 o’clock position when you look at the pump from the rear.

B. The rivet is installed on the 2 o＇clock position of the pump when looking from rear to front.

C. Look at the bolt installed on the pump from rear to front at the 2 o＇clock position.

A. This system is used to expand and return the landing gear.

B. This system is used to extend and retract the landing gear.

C. This system is used to extract and retract the landing gear.

A. 燃油泵安装在隔框附近。

B. 燃油泵与隔框安装紧密。

C. 滑油滤安装在机匣附近。

A. 如果按照制造商的设备标准装修，厨房包括台面、座椅、置物架、备料设备等。

B. 如果按照运营商设计的标准设备装配，卫生间包括镜子、座椅、台盆、冲洗设备等。

C. 如果以制造商指定的标准设备来提供，盥洗室包括镜子、座椅、橱柜、分装设备等物品。

A. 副翼回到中立位后，确保其与襟翼齐平。

B. 扰流板回到原位后，保证和襟翼对齐。

C. 在副翼返回中心之后，保证它们和襟翼相连。

A. Proper recipe shall be adopted to measure the pressure.

B. The pressure shall be estimated by using accurate equation.

C. Calculate the pressure with the applicable formula.

A. 环境控制系统的这些单元和组件提供了一种加压、加热、冷却、湿度控制、过滤和处理通风区域内用于通风的空气的手段，包括压力密封部分内的区域。

B. 环境控制系统由具有提供座舱增压、加热、冷却、湿度控制、过滤和处理用来在机身密封舱内的通风空气功能的组件和部件构成。

C. 环境控制系统由具有提供座舱增压、加热、冷却、湿度控制、过滤和处理用来在机身密封舱内的循环空气功能的组件和部件构成。

A. The equipment refrigeration system exchanges the key equipment cabinets and the equipment in the compartment.

B. The equipment cooling system removes heat from the equipment in the main equipment center and the flight compartment.

C. The equipment exchange system removes heat from the lower equipment center and the aft cargo compartment.

A. You can combine the drains into three primary categories.

B. You can divide the drains into three primary groups.

C. Dividing the drains into three primary groups is an ill-advised option.